High-efficiency cluster-state generation with atomic ensembles via the dipole-blockade mechanism
High-efficiency cluster-state generation with atomic ensembles via the dipole-blockade mechanism
We demonstrate theoretically a scheme for cluster-state generation, based on atomic ensembles and the dipole-blockade mechanism. In the protocol, atomic ensembles serve as single-qubit systems. Therefore, we review single-qubit operations on qubit defined as collective states of atomic ensemble. Our entangling protocol requires nearly identical single-photon sources, one ultracold ensemble …